Improvement in chimney-tools for glass-blowers



UNITED STATES PATENT OEEIcE. i

JAMES e. MUSTIN, 0E PITTSBUEG, PENNSYLVANIA.

IMPROVEMENT IN CHIMNEY-TOOLS FOR GLASS-BLOWERS.

Specification forming part of Letters Patent No. 144,628, dated November18, 1873; application filed February 19, 1873. l

To all whom it may concern:

Be it known that I, JAMES G. MUSTIN, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented a new and usefulImprovement in Tool for Glass- Blowers 5 and I do hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanyin g drawings and to the letters of referencemarked thereon.

The nature of my invention consists in providing the forming-tool usedby glass-blowers with detachable points or fornng-blades.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

In the accompanying drawings, which form part of my specification,Figure l is a longitudinal section of my improvement in tools forglassblowers. Fig. 2 is a top view or plan of the same.

The tool is constructed in the usual form, but the forming points orblades are So constructed that they may be detached from the spring A ofthe tool.

The ordinary mode of constructing the tool represented in theaccompanying drawings is to make the spring A and blades B in one piece.The blades often become injured or broken, thereby rendering the tooluseless; but by constructing the spring A and blades B in separateparts, as hereinbefore described, the injured or broken part may beremoved and a perfect part substituted.

The blades B aresecured to the spling A through the medium of screws C.The spring A should be constructed of spring-steel; but the blades B maybe constructed of wroughtiron, castiron, or of other suitable metal oralloy.

I do not claim, broadly, a tool for glass-blowers havingdetachableforming devices on its points, for I am aware that pivoted anddetachable formers have been and are now used on tools for forming theneck of bottles, &c.

In eontradistinction to such tools, my improvement consists inconstructing what is known among glass-blowers as the chimney-tool insuch manner that its points or blades B may be rigidly attached to thespring A and susceptible of being removed at the will of the operator.

What I claim as of my invention is- A new article of manufacture, viz.,a chimney-tool for glass-blowers, said tool consisting of the spring Aand detachable blades B, constructed substantially as herein described,and for the purpose set forth.

JAMES G. MUSTIN.

Witnesses:

A. C. J oHNS'roN, JAMES J. JOHNSTON.

